android同一个TextView设置不同颜色字体

SpannableStringBuilder style = new SpannableStringBuilder(str);
style.setSpan(
new ForegroundColorSpan(getResources().getColor(
R.color.tab_sel_color)), 0, t1.length() - 1,
Spannable.SPAN_EXCLUSIVE_INCLUSIVE);
style.setSpan(
new ForegroundColorSpan(getResources().getColor(
R.color.tab_sel_color)), t1.length() + 3,
t1.length() + 3 + t2.length(),
Spannable.SPAN_EXCLUSIVE_INCLUSIVE);
mCarGuidancePrice.setText(style);